I loaded some 32 bit software, all the manufactor software people I have talked to about, will it run on a 64 bit, say "load it out and see if it works." I guess I loaded over the 64 bit drivers for the CD & DVD. They quit working and aren't recognized. When I go into device manager and look at the DVD/CD drivers they are system32. I have looked everywhere on the Internet for the 64 bit drivers and have not had any luck. PS When I find them where do I load them. I use Win XP X64 Pro on a AMD 64 X2 dual core processor.Thankslarry